Anno 2070 v1.06 Patch

Some formulas require less prototypes to be researched
Appearance probability of tornado reduced even more
Recyclable materials can now be mined endlessly at Underwater Recycling Stations
Overall game stability was improved
Saved games with more than 600 hours of play time are reacting normally again
Potential campaign dead ends have been fixed
An exploit was fixed which allowed building material being credited whilst demolishing building in pause mode
The impact of rare global ark items was increased